// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ui/aura/test/aura_test_base.h"

#include "ui/aura/client/window_tree_client.h"
#include "ui/aura/test/aura_test_helper.h"
#include "ui/aura/test/test_window_delegate.h"
#include "ui/aura/window.h"
#include "ui/base/ime/input_method_initializer.h"
#include "ui/compositor/test/context_factories_for_test.h"
#include "ui/events/event_dispatcher.h"
#include "ui/events/event_processor.h"
#include "ui/events/gesture_detection/gesture_configuration.h"

namespace aura {
namespace test {

    AuraTestBase::AuraTestBase()
        : setup_called_(false)
        , teardown_called_(false)
    {
    }

    AuraTestBase::~AuraTestBase()
    {
        CHECK(setup_called_)
            << "You have overridden SetUp but never called super class's SetUp";
        CHECK(teardown_called_)
            << "You have overridden TearDown but never called super class's TearDown";
    }

    void AuraTestBase::SetUp()
    {
        setup_called_ = true;
        testing::Test::SetUp();
        ui::InitializeInputMethodForTesting();
        ui::GestureConfiguration* gesture_config = ui::GestureConfiguration::GetInstance();
        // Changing the parameters for gesture recognition shouldn't cause
        // tests to fail, so we use a separate set of parameters for unit
        // testing.
        gesture_config->set_default_radius(0);
        gesture_config->set_fling_max_cancel_to_down_time_in_ms(400);
        gesture_config->set_fling_max_tap_gap_time_in_ms(200);
        gesture_config->set_gesture_begin_end_types_enabled(true);
        gesture_config->set_long_press_time_in_ms(1000);
        gesture_config->set_max_distance_between_taps_for_double_tap(20);
        gesture_config->set_max_distance_for_two_finger_tap_in_pixels(300);
        gesture_config->set_max_fling_velocity(15000);
        gesture_config->set_max_gesture_bounds_length(0);
        gesture_config->set_max_separation_for_gesture_touches_in_pixels(150);
        gesture_config->set_max_swipe_deviation_angle(20);
        gesture_config->set_max_time_between_double_click_in_ms(700);
        gesture_config->set_max_touch_down_duration_for_click_in_ms(800);
        gesture_config->set_max_touch_move_in_pixels_for_click(5);
        gesture_config->set_min_distance_for_pinch_scroll_in_pixels(20);
        gesture_config->set_min_fling_velocity(30.0f);
        gesture_config->set_min_pinch_update_span_delta(0);
        gesture_config->set_min_scaling_span_in_pixels(125);
        gesture_config->set_min_swipe_velocity(10);
        gesture_config->set_scroll_debounce_interval_in_ms(0);
        gesture_config->set_semi_long_press_time_in_ms(400);
        gesture_config->set_show_press_delay_in_ms(5);
        gesture_config->set_swipe_enabled(true);
        gesture_config->set_tab_scrub_activation_delay_in_ms(200);
        gesture_config->set_two_finger_tap_enabled(true);
        gesture_config->set_velocity_tracker_strategy(
            ui::VelocityTracker::Strategy::LSQ2_RESTRICTED);

        // The ContextFactory must exist before any Compositors are created.
        bool enable_pixel_output = false;
        ui::ContextFactory* context_factory = ui::InitializeContextFactoryForTests(enable_pixel_output);

        helper_.reset(new AuraTestHelper(&message_loop_));
        helper_->SetUp(context_factory);
    }

    void AuraTestBase::TearDown()
    {
        teardown_called_ = true;

        // Flush the message loop because we have pending release tasks
        // and these tasks if un-executed would upset Valgrind.
        RunAllPendingInMessageLoop();

        helper_->TearDown();
        ui::TerminateContextFactoryForTests();
        ui::ShutdownInputMethodForTesting();
        testing::Test::TearDown();
    }

    Window* AuraTestBase::CreateNormalWindow(int id, Window* parent,
        WindowDelegate* delegate)
    {
        Window* window = new Window(
            delegate ? delegate : test::TestWindowDelegate::CreateSelfDestroyingDelegate());
        window->set_id(id);
        window->Init(ui::LAYER_TEXTURED);
        parent->AddChild(window);
        window->SetBounds(gfx::Rect(0, 0, 100, 100));
        window->Show();
        return window;
    }

    void AuraTestBase::RunAllPendingInMessageLoop()
    {
        helper_->RunAllPendingInMessageLoop();
    }

    void AuraTestBase::ParentWindow(Window* window)
    {
        client::ParentWindowWithContext(window, root_window(), gfx::Rect());
    }

    bool AuraTestBase::DispatchEventUsingWindowDispatcher(ui::Event* event)
    {
        ui::EventDispatchDetails details = event_processor()->OnEventFromSource(event);
        CHECK(!details.dispatcher_destroyed);
        return event->handled();
    }

} // namespace test
} // namespace aura
